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A057959
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Sum of composite numbers up to n is palindromic.
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1
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4, 34, 36, 215, 258, 288, 1711, 2785, 3708, 4572, 4873, 18986, 29509, 42005, 45534, 234272, 411232, 2074123, 2225480, 2841251, 3728941, 4590401, 17643216, 72349270, 176262062, 219311147, 426454179, 444875288, 1457527586
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OFFSET
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1,1
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COMMENTS
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Sequence is 4 + 6 + 8 + 9 + 10 + 12 + ... + n.
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LINKS
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Carlos Rivera, Puzzle 89, The Prime Puzzles & Problems Connection.
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FORMULA
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CROSSREFS
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KEYWORD
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base,nonn
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AUTHOR
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STATUS
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approved
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